Yup - they're labelled L1 and S1 - so i guess you're right on that. Praps i should have said 9J's -

Ok - i'll live with it Maybe my pals multi meter is a bit fubarred

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FWIW: probably 9J#1 long and short. Pup output really isn't an issue unless you go swapping basses in a set without compensating volumn. You just turn up the amp and/or controls. You're running an onboard preamp with them so that's more compensation for output.